331299936 has 144 divisors (see below), whose sum is σ = 1062457200. Its totient is φ = 100362240.

The previous prime is 331299931. The next prime is 331299949. The reversal of 331299936 is 639992133.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 331299891 and 331299900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331299931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102960 + ... + 106128.

It is an arithmetic number, because the mean of its divisors is an integer number (7378175).

Almost surely, 2^331299936 is an apocalyptic number.

331299936 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331299936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531228600).

331299936 is an abundant number, since it is smaller than the sum of its proper divisors (731157264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331299936 is a wasteful number, since it uses less digits than its factorization.

331299936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210 (or 3185 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The square root of 331299936 is about 18201.6465189279. The cubic root of 331299936 is about 691.9485187848.

The spelling of 331299936 in words is "three hundred thirty-one million, two hundred ninety-nine thousand, nine hundred thirty-six".